NygolaimidaeNygolaimidae is a family of soft-bodied nematodes belonging to the order Dorylaimida. Some members of this family are found in terrestrial soil or fresh water habitats.Descriptionand species of this family are about 1 to 7.3 millimeters in length. Most in this family are characterized by a thin cutical, smooth or fine striations, a spear-like non-protrusible mural tooth located on the left submedian wall of stoma, a basal portion of the esophagus surrounded by a thin sheath, strong spicules with males and short and blundy tails in both sexes.GeneraGenera: Afronygus Heyns, 1968 Aporcelaimoides Heyns, 1965 Laevides Aquatides Heyns, 1968 Nygellus Paranygolaimus Paravulvus ''Solididens''